This project is a collection of my Scala-based implementations of handy data structures. Most notably, it currently consists of a mostly-complete implementation of a BiHashMap, an experimental data structure that attempts to integrate the power of the standard Scala collections library with the idea of hashmap-based bijection. It's of limited utility, and it's not without its faults, but implementing it proved to be a worthwhile experiment.
An example of where BiHashMap is currently being used can be found here.